Running wheels for mice residing in the home cage are useful for the continuous measurement of locomotor activity for studies testing exercise interventions or exercise-induced effects on brain and metabolism. Here, we have developed an open source, printable, open-faced running wheel that is automated to collect locomotor information such as distance traveled, wheel direction, and velocity that can be binned into epochs over 24 h or multiple days. This system allows for remote data collection to avoid human interference in mouse behavioral experiments. We tested this system in an activity-based anorexia procedure. Using these wheels, we replicate previous findings that food restriction augments wheel-running activity.
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http://dx.doi.org/10.1523/ENEURO.0246-22.2022 | DOI Listing |
Int J Mol Sci
November 2024
Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University, 30-387 Krakow, Poland.
The circadian clock controls various physiological processes, including synaptic function and neuronal activity, affecting the functioning of the entire organism. Light is an important external factor regulating the day-night cycle. This study examined the effects of the circadian clock and light on synaptic plasticity, and explored how locomotor activity contributes to these processes.
View Article and Find Full Text PDFMol Biol Rep
December 2024
Humanitas College, Kyung Hee University, 1732 Deogyeongdae-Ro, Yongin, 17104, South Korea.
Background: Secondary lymphedema is a progressive condition caused by lipid- and protein-rich interstitial fluid accumulation resulting from compromised lymphatic function. It commonly occurs in cancer patients following surgical lymph node ablation and radiation treatment. This study aims to elucidate the effects of exercise on the myokine interleukin (IL)-6 and the molecular changes involved in lymphangiogenesis and extracellular matrix (ECM) synthesis using a lymphedema mouse model.
View Article and Find Full Text PDFSleep
December 2024
International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan.
Study Objectives: Sleep/wakefulness is regulated by intracellular signaling pathways composed of protein kinases such as salt-inducible kinase 3 (Sik3). Sik3-deficiency in neurons decreases NREM sleep time and electroencephalogram (EEG) delta power during NREM sleep, while Sik3Slp mice lacking a protein kinase A (PKA)-phosphorylation site, S551, show hypersomnia phenotype. In this study, we examined how a phosphomimetic mutation of the 221st threonine residue (T221E), which provides a partial (weak) constitutive activity of the kinase, affects sleep/wakefulness and circadian behavior.
View Article and Find Full Text PDFCell Mol Gastroenterol Hepatol
December 2024
Key Laboratory of Cellular Physiology at Shanxi Medical University, Ministry of Education; Department of Physiology, Shanxi Medical University, Taiyuan, China, 030001. Electronic address:
Background & Aims: Sleep disorders (SDs) are common in chronic liver diseases (CLDs). Some SDs arise from impaired internal clock and are hence circadian rhythm SDs (CRSDs). Bile acids (BAs), whose levels are increased in many CLDs, reciprocally interact with circadian rhythm.
View Article and Find Full Text PDFJ Nutr Biochem
December 2024
Key Laboratory of Endocrinology of National Health Commission, Diabetes Research Center of Chinese Academy of Medical Sciences, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100730, China. Electronic address:
Poor intrauterine environments increase the prevalence for chronic metabolic diseases in offspring, whereas maternal exercise is an effective measure to break this vicious intergenerational cycle. Placenta is increasingly being studied to explore its role in maternal-fetal metabolic cross-talk. The association between placental miRNA and offspring development trajectories has been established, yet the specific role and mechanism thereof in maternal exercise-induced metabolic protection remain elusive.
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